• 정보관리학회지
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• 제22권4호통권58호
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• pp.23-38
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• 2005

이용자를 시스템 디자인 과정에 적극적으로 참여하는 것이 유용한 정보 시스템의 디자인을 성공시키는 필수요소이다. 본 논문에서는 이용자 중심의 시스템 디자인에 관한 대표적인 방법론을 조사하고, 그 조사결과에 따라 최적의 이용자 모델을 제안하였다. 최적의 정보시스템을 설계하기 위해 실제 이용자들이 자신들의 정보요구를 만족시키기 위해 어떠한 정보를 필요로 하는지와 그들이 수립하는 일련의 정보전략을 분석하였다. 본 연구에서 사용한 분석기법은 더빈의 Sense-Making 이론에서 사용한 Sense-Making Timeline 인터뷰이다. 특히 이 연구에서 제시된 이용자 모델은 이 연구에서 사용된 소프트웨어가 본래가지고 있던 메뉴 배열순서와는 상이한 절차(timeline)를 보여주고 있다. 궁극적으로 본 연구에서는 장래에 수행되어질 시스템 디자인과 그 평가에 적용시킬 수 있기 위해, 이용자 모델수립에 필요한 개발과정의 단계들을 제시하였다.

• 한국전문물리치료학회지
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• 제21권4호
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• pp.56-66
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• 2014

For maintaining adequate psychometric properties when reducing the number of items from an instrument, item level psychometrics is crucial. Strategies such as low item correlation or factor loadings, using classical test theory, have traditionally been advocated. The purpose of this study is to describe the development of a new short form assessing the impact of low back pain on physical activity. Rasch measurement model has been applied to the International Classification of Functioning, Disability and Health Activity Measure (ICF-AM). One hundred and one individuals with low back pain aged 19-89 years (mean age: $48.1{\pm}17.3$) who live in the community were participated in the study. Twenty-seven items of lifting/carrying construct of the ICF-AM were analyzed. Ten items were selected from the construct to create a short form. Item elimination criteria include: 1) high or low mean square (out of the range: .6-1.4 for the fit statistics), 2) similar item calibrations to adjacent items, 3) person separation value, and item-person map for potential gap in person ability continuum. All 10 items of the short form fit to the Rasch model except one item (i.e., carrying toddler on back). Despite its high infit and outfit statistics (1.90/2.17), the item had to be reinstated due to potential gaps at the upper extreme of person ability level. The short form had a slightly better spread of person ability continuum compared to the entire set of item. The created short form separated individuals with low back pain into nearly 4 groups, while the entire set of items separated the individuals into 6 groups. The findings prompted multidimensional models for better explanation of the lifting/carrying domain. The item level psychometrics based on the Rasch model can be useful in developing short forms with rationally retained items.

• Journal of Nutrition and Health
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• 제32권8호
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• pp.908-917
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• 1999

This study was done to compare nutrient intakes, anthropometric indices, and psychosocial factors related to smoking by smoking status among adolescent girls in Seoul. Subjects were high school students, and smokers were 17.6%. Nutrient intakes were analyzed by convenient method, and anthropometric measurements were done by Inbody 2.0. Psychosocial factors of smoking were examined based on the Theory of Planned Behavior : 26 attitudinal, 9 normative, and 17 control beliefs were used. Smokers smoked 5-7 cigarettes a day on average, with 1.26 pack-years of smoking, There were no significant differences in anthropometric characteristics, except fat distribution, between smoking(n=92) and nonsmoking(n=92) and nonsmoking(n=94) group. The percentage of alcohol groups. Especially, caloric intake (63.6% of RDA) were much below the recommended level. With respect to psychosocial factors, 18 out of 26 attitudinal beliefs were significantly different between smokers and nonsmokers. Smokers responded less negatively on the items of bad health effects of relax(p<0.001). In addition, smokers were more convinced of advantages of smoking (test, etc.)but responded less negatively on the disadvantages of smoking(bothering others, yellow teeth, bad breath, etc.). Smokers expressed less pressure for not smoking from siblings, friends, school seniors than nonsmokers. In addition, smokers, expressed less confidence in controlling the urge to smoker or quitting smoking in several situations, such as 'after a meal', 'feel bored', 'with friends', 'when angry' offered a cigarette by friends', 'drinking coffee or tea', 'drinking alcohol', 'seeing others smoke'(p<0.001). Smokers also felt less developing in applying specific skills for controlling the urge to smoker or quitting smoking. These findings suggest the need for developing smoking cessation programs for adolescent females, focusing on specific beliefs identified in this study.

• 한국정보시스템학회지:정보시스템연구
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• 제21권3호
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• pp.163-186
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• 2012

With the development of Internet and transition to information society, social capital is expanding to online from the traditional offline context. Especially with the widespread of social network service(SNS) the number of SNS users is increasing sharply and the importance of online social capital has been more and more significant. Most studies on social capital focused on organizational aspects but few studies have payed attention to personal aspect. Empirical studies on the relation between SNS and social capital were seldom conducted in previous studies. Based on the theory of social capital this study targets on the relationship formed through SNS and analyzes on how the relationship affects the perceived social capital. In this study 'self-presentation', 'playfulness' and 'critical mass' are posited as the antecedent factors of 'SNS usage'. This study proposes a research model to examine the effect of 'SNS usage' on 'relationship reinforcement', 'relationship building' and 'perceived social capital'. According to the results of empirical analysis, 'self-presentation', 'playfulness' and 'critical mass' can generate significant positive influence on 'SNS usage'. It also confirms not only the effect of 'relationship reinforcement' and 'relationship building' formed through SNS on 'perceived social capital' but also relationship between the social capital formation and SNS usage. The outcome obtained in this study can be applied in developing SNS services.

• 지역사회간호학회지
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• 제16권3호
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• pp.249-259
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• 2005

Purpose: The purpose of this study was to understand the coping process that family caregivers experience during the process of care, to grasp coping behaviors used to solve problems and, finally, to develop a substantive theory by analyzing the coping process. Method: The methodology of collecting and analyzing data used in this study followed the ground theory of Strauss and Corbin(1998). Data were collected through in-depth interviews with open-ended and descriptive questions about the subjects' coping experiences, which were audio-taped and transcribed. The survey was conducted between February 2000 and February 2001. The subjects of this study were 17 women. Result: The result of the study is as follows. The coping process of family caregivers while taking care of the demented elderly was found to have six stages: problem recognition: undertaking care: struggling: mental control: burden mediation; and acceptance. These stages proceed with reciprocal action and in cycle. Conclusion: The result of this study is helpful for developing effective and individual nursing strategies suitable for each coping stage. It is necessary to develop an assessment tool that can judge caregivers' coping stage based on the result of this study. Moreover, we need continuous study to practice nursing mediation and to analyze the change about nursing effect and family members' adaptation.

• Structural Engineering and Mechanics
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• 제68권1호
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• pp.1-15
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• 2018

In ocean industry, free surface type ART (Anti Roll tank) system has been widely used to suppress the roll motion of floating structures. In those, various obstacles have been devised to obtain the sufficient damping and to enhance the controllability of freely rushing water inside the tank. Most of previous researches have paid on the development of simple mathematical formula for coupled ship-ARTs analysis although other numerical and experimental approaches exist. Little attention has been focused on the use of 3D panel method for preliminary design of free surface type ART despite its advantages in computational time and general capacity for hydrodynamic damping estimation. This study aims at developing a potential theory based hydrodynamic code for the analysis of floating structure with baffled ARTs. The sloshing in baffled tanks is modeled through the linear potential theory with FE discretization and it coupled with hydrodynamic equations of floating structures discretized by BEM and FEM, resulting in direct coupled FE-BE formulation. The general capacity of proposed formulation is emphasized through the coupled hydrodynamic analysis of floating structure and sloshing inside baffled ARTs. In addition, the numerical methods for natural sloshing frequency tuning and estimation of hydrodynamic damping ratio of liquid sloshing in baffled tanks undergoing wave exiting loads are developed through the proposed formulation. In numerical examples, effects of natural frequency tuning and baffle ratios on the maximum and significant roll motions are investigated.

• 한국직업건강간호학회지
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• 제16권2호
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• pp.119-129
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• 2007

Purpose: The purposes of this study were to understand the coping experience that family caregivers undergo during the process of care, to grasp coping behaviors used to solve problems and, finally, to develop a substantive theory by analyzing the coping process. Method: The methodology of collecting and analyzing data used in this study followed the ground theory. Data were collected through in-depth interviews with open-ended and descriptive questions about the subjects' coping experiences. The survey was conducted between May 2006 and August. The subjects of this study were 10 women. Result: The result of the study is as follows. Core category of This Study was "Self-Sacrifice". And The coping process of family caregivers while taking care of the industrial disaster victim was found to have five stages: shocked stage; undertaking stage of new role; skilled stage; exhausted stage; and desiderating stage. Seven coping behaviors were found to reduce the stress of role and anguish resulting from care. Conclusion: The result of this study is helpful for developing effective industrial nursing strategies suitable for each coping stage. It is necessary to practice nursing mediation and to analyze the change about nursing effect and family caregivers' adaptation.

• 공학교육연구
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• 제26권3호
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• pp.35-41
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• 2023

The study was conducted to develop two parallel short forms for the Convergent thinking and Problem solving questionnaires which are part of H University's core competency diagnostic tools, based on Multi-Item Response Theory. Item responses of 2,580 students were analyzed using Graded Response Model(GRM) to determine item difficulty and discrimination of each item. The research results are as follows. Two parrallel short tests were developed for the Convergent thinking questionnaire consisting of 12 items which were originally 17 items. Likewise, the Problem solving questionnaire, which originally consisted of 15 questions, was divided into two parallel short forms, each consisting of 9 items. The reliability of the shortened parallel tests was confirmed through internal consistency analysis, and their similarity to the original tests was established through correlation analysis. This study contributed to quality management of competency-based education and programs at H University by developing shortened tests. Based on the results, implications were presented as well as limitations and discussions.

• Journal of Information Science Theory and Practice
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• 제10권1호
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• pp.1-17
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• 2022

The article reports the results of an investigation on the practice of providing digital scholarship services at Vietnam National University Ho Chi Minh City, Vietnam. This study is part of an ongoing research project entitled Developing a digital scholarship service framework for universities at Vietnam National University Ho Chi Minh City. It employed a qualitative research approach through in-depth interviews with 31 individuals who are university managers, library managers, lecturers, and postgraduate and undergraduate students from six member universities and Central Library of Vietnam National University Ho Chi Minh City. Research results show that some digital scholarship services have been provided at Vietnam National University Ho Chi Minh City. However, they have not been yet systematically implemented and have not met users' needs. Lack of needed resources such as space, technology infrastructure, human resources, finance, and stakeholder support are among major challenges in developing digital scholarship services. The management of existing digital scholarship services is fragmented without a clear policy for developing digital scholarship and supporting services. The study contributes to the existing knowledge by adding substantially to current understanding of the practice of providing digital scholarship services in Vietnam's universities in the transition period, from state control to autonomy, which has not been much addressed in previous research. Furthermore, this study can be a useful reference for higher education institutions in developing countries regarding implementation of digital scholarship services.

• 한국융합학회논문지
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• 제7권5호
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• pp.263-268
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• 2016

본 논문은 Glasser(1998)의 선택이론 관점에서 청소년의 정서문제와 휴대전화의존 그리고 학교생활적응의 관계구조를 검증함으로 청소년의 학교생활적응 향상을 위한 실천방안을 도출하고자 한다. 이를 위해 한국 아동 청소년 패널자료 중 2차년도 자료가 활용되었다. 분석대상은 중학생 2,075명으로 남학생 1,015명(48.9%), 여학생 1,060명(51.1%)이었고, 가설검증을 위하여 구조방정식 모형분석을 실시하였다. 분석결과 청소년의 학교생활적응에 가장 큰 영향을 미치는 변수는 공동체의식이었고, 선택이론을 근거로 청소년의 정서문제가 학교생활적응과 휴대전화의존에 유의미한 영향을 미치는 것으로 나타났다. 또한 청소년의 휴대전화의존은 정서문제와 학교생활적응 간의 관계를 매개하는 것으로 나타났다. 본 연구결과를 토대로 청소년의 학교생활적응의 향상을 위해 공동체의식 함양, 휴대전화의존과 정서문제를 완화를 위한 상담 프로그램 개발 및 상담교사 증원과 비정규직의 개선 등을 논의하였다.